Răspuns :
a |-----|
b |-----|-----| } 60.
60 : 3 = 20 (a)
20 x 2 = 40 (b)
Verificare : 20 +40 = 60 ( a +b).
b |-----|-----| } 60.
60 : 3 = 20 (a)
20 x 2 = 40 (b)
Verificare : 20 +40 = 60 ( a +b).
a+b=60
a=2b
2b+b=60
3b=60
[b=20]
a+20=60
[a=40]
40 20 20
|-------------|--------|--------|=60
a b
a=2b
2b+b=60
3b=60
[b=20]
a+20=60
[a=40]
40 20 20
|-------------|--------|--------|=60
a b